<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>zuoye3</title>
	</head>
	<body>
				<script type="text/javascript">
			var op1=prompt("请输入第一个数：","");
			var op2=prompt("请输入第二个数：","");
			var a=parseInt(op1);
			var b=parseInt(op2);
			var c=a+b;
			var d=a-b;
			var e=a*b;
			var f=a/b;
				document.write(a+"+"+b+"="+c+"<br/>");
				document.write(a+"-"+b+"="+d+"<br/>");
				document.write(a+"*"+b+"="+e+"<br/>");
				document.write(a+"/"+b+"="+f+"<br/>");
				</script>

	</body>
</html>
